Osso Buco-Style Chicken Thighs

Ingredients

• 1 tablespoon olive oil, divided
• 6 chicken thighs (about 2 pounds), skinned
• 3/4 teaspoon salt, divided
• 1/4 teaspoon black pepper
• 2 cups chopped onion
• 3/4 cup cubed carrot
• 3/4 cup coarsely chopped celery
• 2 cloves garlic, minced
• 3/4 cup dry white wine
• 5 cups chopped tomato (about 2 pounds)
• 1 teaspoon dried basil
• 1 teaspoon dried rosemary
• 2 cups 1% low-fat milk
• 1 (14 1/2 ounce) can fat-fee, less-sodium chicken broth
• 1 cup uncooked instant polenta
• 3/4 cup (3 ounce) grated Gruyere cheese
• 1/4 teaspoon salt
• 3 tablespoons chopped fresh parsley
• 2 teaspoons grated lemon rind
• 1 clove garlic, minced